Professional gloves

have you ever noticed that professional baseball players especially pitchers gloves look shiny. if so what do they do to their gloves to make them like that?

They’re new. Most pro pitchers have 2 or 3 game gloves and 1 practice glove. Many pitchers go through 3-5 gloves a season, not because they need new gloves, but because they get them for free from their agents or sponsors.